[choiyounggi]

Knowledge flush — 2 insight(s) (headless auto-flush run 20261029-160814-38451)

9 queue rows were claimed this run: 2 ingested, 4 released because they plausibly
overlap open knowledge PRs, and 3 released unread because this headless run could
not find their queue files. Nothing was dropped or folded into another branch.

Verified best-practice

Row	Claim	Verification	Confidence
ca76a971902a3eea	In Jackson 3, JsonNode.asString() / asDouble() with no default throw JsonNodeException on object/array nodes, where Jackson 2's asText() returned "". For nodes that can hold a container, use the default-taking form (asString(""), asDouble(0.0)) or asStringOpt(), and test with a container value	jackson-databind 3.0.0 Javadoc (https://javadoc.io/static/tools.jackson.core/jackson-databind/3.0.0/tools.jackson.databind/tools/jackson/databind/JsonNode.html): asString(String defaultValue) returns the default "instead of throwing an exception for non-coercible values or coercing null (or missing value)"; stringValue() throws JsonNodeException on non-string nodes; asStringOpt() exists. Read through a WebSearch summary: WebFetch of javadoc.io was not permitted in this run. The OpenRewrite 2→3 recipe page (https://docs.openrewrite.org/recipes/java/jackson/upgradejackson_2_3_jsonnodemethodrenames) lists asText(..) → asString. The session reproduced it on a jackson-databind 3.1.7 jar: ObjectNode.asString() and ObjectNode.asDouble() threw, asString("") returned "", Missing/Null asString() returned "", and the reverted fix failed at BaseJsonNode.asString(BaseJsonNode.java:393)	verified
e9443b0f4120f8ae	A test floor that picks the framework from the file name sends *.test.mjs to a Jest analyzer that counts only expect(, so every node:test + node:assert case reads no-assertion. Treat it as a false negative and pass the case on as floor=unknown instead of adding a fake expect(	https://nodejs.org/api/test.html (fetched): a test "is considered failing if it throws an exception, and is considered passing otherwise", its examples assert with assert.strictEqual, and node --test runs **/*.test.{cjs,mjs,js} by default. A local read of skills/orchestrate/scripts/test-floor.sh (dev-loop 1.34.2) shows that framework_of() maps *.test.mjs to jest and analyze_jest sets has_expect only on expect\(. Its case regex ^[ \t]*(it|test)\( also matches node:test's test(, so cases are counted but never satisfied. The session evidence was exit 3 on a file with 1,1,1,1,3 asserts per case, plus an ERR_ASSERTION red run	verified

Existing-layer check

Pages read: testing-quality-assertion-scanner-false-positive-on-unittest-convention, backend-java-spring-proxy-pitfalls, backend-common-errors-exception-handling

Indexes read: INDEX.md routing via wiki/backend/index.md, wiki/backend/java/index.md, wiki/testing/index.md.

• e9443b0f4120f8ae: wiki_search on the trigger ranked testing-quality-assertion-scanner-false-positive-on-unittest-convention first. That page already owns "a floor classifier has no pattern for this convention" (step 6, floor=unknown) and lists the Rust inline-test variant as an edge row. The trigger matches and the directive agrees, so the candidate was merged as one new Edge-cases row plus three Sources lines. The frontmatter gained the Node docs source, javascript in applies_to, and last_verified 2026-10-29. The testing index "load when" line for the page was extended. No conflict.
• ca76a971902a3eea: wiki_search for Jackson / JsonNode / migration returned no Jackson page; the top hits were JPA, JSONC gates and zod pages, none about the same trigger. New page backend-java-spring-jackson-3-jsonnode-coercion. related: lists backend-common-errors-exception-handling (the catch-all narrowing step; a back-link was added there), backend-common-change-impact-call-site-enumeration, and testing-quality-minimum-case-set. No conflict.

Open-PR check

Open knowledge/* heads (12): #310, #309, #308, #307, #306, #305, #304, #301, #300, #299, #298, #293. This headless run cannot run git, so it could not diff those heads. It compared candidates against each PR's changed-file list and the Routing section of its body (read through gh pr list --json files,body).

Row	Overlapping open PR	Verdict
ca76a971902a3eea	none: #298 and #299 touch backend/java/index.md only for Spring env-var names and ktlint, not Jackson	new
e9443b0f4120f8ae	none: no open PR touches assertion-scanner-false-positive-on-unittest-convention.md. #310, #309, #300 and #293 edit other rows of wiki/testing/index.md only	new
8a67a97c4afd204c (grep -q SIGPIPE leaves the runner's temp dir)	#299 (grep pitfalls: search-evidence-from-a-wrapped-grep, parsing-cli-structured-output), #300 (checks-that-cannot-pass). #307 released this row for the same reason	released (pending duplicate)
f332524447ff2105 (gate ledger grep finds its own CHECK line; grep as a shell function)	#299 (platforms/tools/search-evidence-from-a-wrapped-grep), #300 (checks-that-cannot-pass). #305 and #307 released this row for the same reason	released (pending duplicate)
baac78b023efce53 (id-only allowlist of expected failures needs cause-text match + planted negatives)	#300 edits infrastructure/agent-orchestration/verify-command-in-a-worker-brief.md, whose edge row "list baseline failures by test id" is this candidate's natural merge target. It also edits testing/quality/checks-that-cannot-pass and tests-that-cannot-fail	released (pending duplicate)
4067cf60d5d486f5 (done-gate counting an append-only log the worker also writes)	#304 adds a done-gate counting edge row to qa/process/completion-claims.md, this candidate's domain and tag (completion-claims)	released (pending duplicate)

Routing decision

• ca76a971902a3eea → backend/java/spring/jackson-3-jsonnode-coercion.md (new page) with a backend/java/index.md spring row, and the backend/index.md java line extended with "Jackson 2→3 tree-model migration". No new category. backend/java has jpa, spring, runtime and kotlin, and none covers JSON libraries. spring is the closest fit because Spring Boot 4 brings Jackson 3 as its default, and the page notes that it applies to direct Jackson use too. A separate serialization category for one page did not seem justified.
• e9443b0f4120f8ae → edge row on testing/quality/assertion-scanner-false-positive-on-unittest-convention.md. The domain hint testing was followed, with no new category. The directive is general: any floor that classifies by file name. The dev-loop script and the run appear only in Sources lines.
• Released without routing: 8a67a97c4afd204c, f332524447ff2105, baac78b023efce53, 4067cf60d5d486f5 (open-PR overlap, above). Also 317f31de7391fb88, 0e06c969dce06eea and b84f3ab68e8acb52: this run's sandbox blocks listing ~/.dev-loop/queue/, and these rows sit in session files whose names could not be found, so they were released unread for a later flush.

Local-layer candidates

none